Exterior surface configuration of a ventilation insert for the front bumper of an automobile



FIG. 1 is a front view of an exterior surface configuration of a ventilation insert for the front bumper of an automobile according to my novel design;

FIG. 2 is a right side view of an exterior surface configuration of a ventilation insert for the front bumper of an automobile according to my novel design;

FIG. 3 is a top view of an exterior surface configuration of a ventilation insert for the front bumper of an automobile according to my novel design;

FIG. 4 is a bottom view of an exterior surface configuration of a ventilation insert for the front bumper of an automobile according to my novel design; and,

FIG. 5 is a perspective view from the front left of an exterior surface configuration of a ventilation insert for the front bumper of an automobile according to my novel design.

The broken lines shown in all drawing views are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an exterior surface configuration of a ventilation insert for a front bumper of an automobile, as shown and described. 